Emerson Micro Motion GDM Installation Manual page 33

Figure 3-2: Hazardous area output wiring using galvanic isolators (mA outputs option)
mA1+
HART
mA2
A
RS-485
B
PWR
3.2.4 Wire Time Period Signal (TPS) or Discrete output options
using galvanic isolators
Micro Motion provides a galvanic isolator installation kit specific to wiring the Time Period
Signal (TPS) and Discrete versions of the meter in a hazardous area. Contact your local
sales representative or Micro Motion Customer Support at
more information on ordering an isolator kit for your meter.
CAUTION!
•
•
The galvanic isolator kit (TPS/Discrete version) provides isolators for connecting the
following outputs. Use the provided isolators with the designated output.
Installation Manual
Hazardous Area
Meter installation and wiring should be performed by suitably trained personnel only in
accordance with the applicable code of practice.
Refer to the hazardous area approvals documentation shipped with your meter. Safety
instructions are available on the Micro Motion Product Documentation DVD and
accessible on the Micro Motion website at www.micromotion.com.
Non-Hazardous Area
14
2
13
24 VDC
12
1
11
14
2
13
24 VDC
12
1
11
3 1
4
2
2 14
13
1
12
LINK
11
flow.support@emerson.com
Wiring
HART
250 Ω Device
Signal
250 Ω
Device
RS-485 A
RS-485 B
24 VDC
for
29